pos-tlethwaite



(No Model.) 3 ,Sheets-Sheet 1.

1v1. POSTLETHWAITE.

VENTILATBD HAT.

No. 885,282. ,Pa-tentedJune 28., 1888.

Pi E WITNESSES, INVENTOR, wnywe. @zu l W ./ttzjrney,

N. Pneus. Phunu-Linhugnpher, whmgwn. u. c.

(No Model.) 3 Sheets-Sheet 2.

POSTLETHWAITE.

VENTLAT'ED HAT.

No. 888,282. l Patente-June 28, 1888.

WJTJVESSES. Y IN VENTOR,

ZZu/LQEMZZ A v iff/'4 v Attorney,

3 Shets-Sheet '3.

VENTILATED HAT.

No. 385,282. Patented June 26, 1888.

Irl/1109 UNiTnn STATES Trice.

`VENTILATerJ HAT.

SPECIFICATION forming part of Letters Patent No. 385,282, dated. June 26, 1888.

Application filed January 17, 1888. Serial No. 260,970. (No model.)

To @ZZ whom it may concern:

Be it known that I, Minus Posrnnrnwiiirn, of VhitehaVen, in the county of Cumberland, England, have invented certain new and. useful Improvements in Means for -i/entilating Hats or Coverings for the Head, of which the following is a specification.

My invention h'as for its object to provide hats or head-coverings with efficient means for ic securing ventilation while they are in wear.

According to my invention I provide a passage or uptake for the heated air from the hat and a casing or channel or channels for the admission ot' external air, the said passage (or i uptake) and casing (or channel or channels) both communicating with the exterior of the hat and with the interior of the hat, so that there are distinct passages through which the hot air escapes and the cooler air enters, re`

2o spectively. It is not new, broadly considered, to provide head-coverings with such passages.

My invention consists in the construction and arrangement of parts whereby the proper movement of the air is secured.

In order that my said invention may be fully understood, I shall now proceed more particularly to describe the same, and for that purpose shall refer to the several gures on the annexed sheets of drawings, the same letters of reference indicating corresponding parts in all the figures.'

Figure l is a section of a hat provided with a Ventilating arrangement according to myinvention. Fig. 2 is a plan ofthe said. arrangement. Fig. 3 isasection, similar to Fig. 1, of a modified arrangement. Fig. 4i is a section of a portion of a helmet provided with the arrangement of inlet-passages shown in Fig. 3. Figs. 5 and 6 are details, hereinafter referred to.

4o Referring to Figs. l and 2, a lining or false crown, A, is placed in the hat, leaving a space, B, between itself and the crown proper, C. In this space B, (preferably in the center thereoi`,) and passing therethrough from the interior to the exterior of the hat, is a tube, D, and

surrounding this tube is a casing, E, communicating with the exterior by openings ein the crown of thehat and by openingsf at its sides with the space B between the crown proper,C,

5o and the lining or false crown A, which latter has openingen in it communicating with the interior of the hat. rlhe space between the crown proper and the lining or false crown, instead ot' being used as a passage for air, may be replaced orsuppleniented by tubes (G,as shown in the section, Fig. 3, leading from the aforesaid casing E, the said tubes preferably extending to the sides ofthe hat and down the sides and terminating and openingjust above the head of the wearer of the hat, their open lower ends being shielded or eut off from direct communication with the interior of the hat by extend- `ing into the space between the sweatband or sweat-lining s and the sides of the hat, as seen in Fig. 3. The object of this is to prevent the incoming currents of cool air from being interfered with by warm air, which might otherwise freely pass into the tubes.

In both arrangements the air from inside the hat passes out by the central tube, D, and external air consequently enters by the openings c into the casing E, surrounding it, and passes by the openings in the sides thereof and by the openings in the lining or false crown, or by the tubes, which may be used in place thereof, into the interior of the hat. If desired, the arrangement of Fig. 1, as regards the admission of external air, may be coinbined with the arrangement Fig. Si by niaking openings through the sides of the casing 8o E and in the false crown, as at f and a, Fig.

1. To insure the proper passage of the eurrents of air, the central tube has openings (Z in its sides, at the lower ends of which are inwardly and upwardly inclined deflectors 7c, 85 which act to prevent the passage of incoming aircurrents throughV this tube, defiecting through the openings d into the casing or exterior chamber such external air as may from time to time accidentally enter the tube and 9o preserving the passage D practically free for the escape of heated air. Hoods d2 may, if desired, be applied tothe exterior of the openings d to turn off and down currents of external air and prevent them from entering the tube through these openings. Ihe openings f in the sides of the casing, through which the cold air passes in the arrangement shown in in Fig. l, have silk or mica flaps or equivalent valves, as shown at e2, to close the openings roo against up currents. 'Ihes'e iaps or valves are more especially applicable to the arrangement wherein the space between the crown proper and the false crown or lining is used as a cold air passage, as in Fig. 1. rIhe sides of the casing may be flattened to seat these flaps or valves; but the iiaps or valves may be dispensed with. When the tubes G are used, the lower ends or any suitable part may be covered with flaps or valves for the like purpose; but the arrangement of these open lower ends between the sweat-band and the sides of the hat, as hereinbefore provided, will in most instances alone answer the purpose. In this way I am enabled to assure the proper movement of both the outgoing and the incoming currents of air. rIhe openings f may have hoods over them, as at f2, Fig. l.

The exit-tube D may be'covered with felt or other material or composition, as shown at h, Fig. 1, to keep the said tube warm and facilitate the action of the ventilator; or the said tube and the casing F. may both be so covered, as shown in Fig. 3.

Fig. 4 is a section showing the application of the invention to a helmet. 'Ihe boss or top ornament, J, in which the spike J2 is supported, acts as the inlet-chamber B, it having openings at e for external air and having a bottom plate, E, in which the hat-body is secured, as at E2. Into this bottom plate the stems or short tubes G2 open, and to thesestems or short tubes the air-inlet tubes G (like those hereinbefore described) are affixed, said tubes having their lower ends shielded from the heated air, as hereinbefore provided. In the said bottom plate, E, is also a screwed hollow stem, D2, into which a tube, D, screws? the said tube forming the means of connecting the spike J 2 to the boss or top ornament, J", and acting as the uptake for heated air, the lupper end of the said tube opening into the cross-tube d3, which communicates with the outer air by openings at its ends.

Fig. 5 is a plan of the bottom plate, and Fig. 6 shows the spike separately. A

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed,

I declare that what I claim is- 1. The combination, with the hat-body, of the uptake or exit tube provided with side openings and internal dedeetors, the casing surrounding the uptake-tube for ad mission ot' external air, and channels leading therefrom to the interior of the hat, as and for the purposes hereinbefore set forth.

2. The combination, with the hat-body, of the uptake or exit tube provided with side openings and internal deflcctors, the casing surrounding the uptake-tube for admission of the external air, and the tubes G, leading from said casing to the lower part of the hat, substantially as and for the purposes hereinbefore set forth.

8. In hat-Ventilating apparatus, the combination, with the hat-body andthe easing E, for admission of external air, of tubes G, leading from said easing to the lower part of the interior of the hat, with their lower ends shielded or protected from the portion ol' the hat containing thc heated air.

In testimony whereof I have hereunto set my hand this 11th day of January, 1888.

MILES POSTLETHWAITE.

Witnesses:

EWELL A Diok, MARVIN A. CUsTIs. 

